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Patent US3188091A successfully refreshed from Google Patents.
US3188091A
Expired / Lapsed
US
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Tape cartridge interlock
Assignee: 3M Co
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Filing: 1960-11-10
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Granted: 1965-06-08
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Expires: 1980-11-10
Abstract
No abstract record available.
Inventors
- 👤 John D Goodell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:13
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/675; G11B15/68; G11B15/6885
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
IN A TAPE RECORDING-REPRODUCING APPARATUS, THE COMBINATION OF MEANS FORMING A TAPE CARTRIDGE RECEIVING WELL, PLATFORM MEANS SLIDABLY MOUNTED IN SAID WELL, MEANS URGING SAID PLATFORM UPWARDLY IN SAID WELL, INDEXING MEANS OPERABLE TO INDEX TAPE CARTRIDGES ON SAID PLATFORM SUCCESSIVELY TO A REFERENCE POSITION, THE SAID INDEXING MEANS COMPRISING DETENT PORTIONS OPERATIVELY ENGAGING OPPOSITE SIDES OF A CARTRIDGE RETAINED AT SAID REFERENCE POSITION, A PLAY BUTTON, MEANS FOR LOCKING SAID INDEXING MEANS AGAINST INADVERTENT MOVEMENT AND DISPLACEMENT OF A CARTRIDGE BEING HELD AT SAID REFERENCE POSITION, AND MEANS LINKING SAID PLAY BUTTON WITH SAID LOCKING MEANS SUCH THAT WHEN SAID PLAY BUTTON IS DEPRESSED, THE SAID LOCKING MEANS OPERATIVELY ENGAGES SAID INDEXING MEANS DURING A PLAY CYCLE OF SAID CARTRIDGE BEING RETAINED.
References Cited (Backward Citations)
US2561503A
Cited
US3100090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |